Sea & Sea YS-03 Solis (Does Not Include Fiber Optic Cable)

Name: Sea & Sea YS-03 Solis (Does Not Include Fiber Optic Cable)
Brand: Sea & Sea
SKU: SS-03125
Price: 329.95 USD
Availability: OutOfStock

Sea & Sea | SKU: SS-03125

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Product Information

The Sea & Sea YS-03 Solis is a compact slave-TTL underwater strobe built for divers who want automatic TTL flash exposure without manually dialing in output. It carries a guide number of 20 (ISO 100/m, land), a single OFF to TTL rotary switch, and a 75m depth rating. This listing does not include the fiber-optic sync cable, which is required to connect the strobe to a camera and must be purchased separately.

Who it is for

The YS-03 Solis suits underwater photographers who want simple, beginner-friendly strobe lighting rather than manual flash control. Because it mimics the light intensity of a camera's built-in flash, it works with any camera, regardless of make, that has a pre-flash and TTL flash exposure function. It is a good fit for divers moving up from a built-in flash who want more even, diffused lighting without learning manual strobe settings.

Key details

Guide number: 20 (ISO 100/m, land)
Beam angle: 100° x 100°, or 110° x 110° with the diffuser
Batteries: 4 x AA, alkaline (6V) or Ni-MH (4.8V)
Flash count: approximately 230 with alkaline, 300 with Ni-MH (2500mAh)
Recycle time: 2.5 seconds alkaline, 1.9 seconds Ni-MH
Color temperature: 5600K, or 5250K with the diffuser fitted
Depth rating: 75m
Dimensions: 68mm x 108mm x 129mm
Weight: 430g body only, excluding batteries, with fixing bolt fitted; approximately +10g underwater with batteries installed

Compatibility and sizing

The YS-03 Solis is designed to sync with any camera that has a pre-flash and a TTL flash exposure function. It requires a fiber-optic sync cable to communicate with the camera's built-in flash; this cable is not included with this listing and must be sourced separately before the strobe can be used.

What's in the box

Fixing/mounting bolt
Half-translucent diffuser

DiveCatalog.com is an authorized Sea & Sea dealer and a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you have questions about fit, compatibility, or whether you need the fiber-optic cable for your camera setup.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

Does the Sea & Sea YS-03 Solis include the fiber-optic sync cable?

No. Per the manufacturer, the fiber-optic sync cable is not included with the YS-03 Solis strobe and must be purchased separately. The cable is required to connect the strobe to your camera's built-in flash for TTL sync, so factor it into your setup before diving.

Is the Sea & Sea YS-03 Solis discontinued?

Yes. The manufacturer's product page lists the YS-03 Solis as a discontinued, end-of-production item, with no replacement model stated. Both the standalone strobe and the YS-03 Solis Lighting System bundle are marked discontinued by Sea & Sea.

What batteries does the YS-03 Solis strobe use, and how many flashes do they give?

The YS-03 Solis runs on 4 x AA batteries, either alkaline (6V) or Ni-MH (4.8V). Alkaline batteries yield approximately 230 flashes per set, while 2500mAh Ni-MH batteries yield approximately 300 flashes, with recycle times of 2.5 seconds and 1.9 seconds respectively.

Will the YS-03 Solis work with my camera?

The YS-03 Solis is designed to sync with any camera, regardless of brand, that has a pre-flash and a TTL flash exposure function. It mimics the output of that built-in flash automatically. You will still need a fiber-optic sync cable, sold separately, to connect it to your specific camera housing.

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Guide Number (ISO 100/m, land)	20
Beam Angle	100° x 100° (110° x 110° with diffuser)
Batteries	4 x AA; Alkaline: 6V, Ni-MH: 4.8V
Number of Flashes	Alkaline: 230, Ni-MH (2500mAh): 300
Recycle Time (full)	Alkaline: 2.5 sec. Ni-MH: 1.9 sec.
Color Temperature	5600K
Color Temperature (with diffuser)	5250K
Depth Rating	75m / 250ft
Dimensions (WxHxD)	68mm x 108mm x 129mm / 2.7in x 4.3in x 5.2in
Weight	430g / 15.2oz, body only, excluding batteries, fixing bolt fitted
Underwater Weight	Approx. +10g / 0.4oz with batteries
Sync Method	Fiber-optic cable (not included)
Other Functions	Auto power off, over-pressure relief valve